The Topeak MTS Trunk Bag EX is a waterproof trunk with a 6.6-liter capacity. The main compartment is divided and constructed using a unique process that combines rigid panels and flexible fabric for structure and water resistance. The bag also features two mesh side pockets for extra capacity and a rear water bottle holder. The Racktime adapter plate at the bottom of the bag allows you to attach the Racktime Snap-It adapter. Please note: the Snap-It adapter is not included. The bag is equipped with reflective strips, a rear light mount, and a shoulder strap. It easily attaches to your rear rack and can also be converted into a shoulder bag using the shoulder strap. Product specifications - Weight: 530 grams - Dimensions: 36*21*19 cm - Material: 600D polyester - Capacity: 8 liters - Color: Black